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<a NAME="E1:53"/>
 <a href="margrel1.html#K19" title="MARGREL1:func.19">arity</a> <span class="p1">(<span class="default">1 <a href="comput_1.html#K5" title="COMPUT_1:func.5">proj</a> 1</span>)</span> <a href="hidden.html#R1" title="HIDDEN:pred.1">=</a> 1
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="comput_1.html#T37" title="COMPUT_1:th.37">COMPUT_1:37</a></span>;<br/>
<a NAME="E2:53"/><span class="kw">then </span>
 <a href="relat_1.html#NK2" title="RELAT_1:NK.2">dom</a> <a href="comput_1.html#K15" title="COMPUT_1:func.15">[+]</a> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a> <span class="p1">(<span class="default">1 <a href="nat_1.html#K2" title="NAT_1:func.2">+</a> 1</span>)</span> <a href="finseq_2.html#K4" title="FINSEQ_2:func.4">-tuples_on</a> <a href="numbers.html#K5" title="NUMBERS:func.5">NAT</a>
 
<span class="kw">by</span> <span class="lab"><a class="ref" href="comput_1.html#T56" title="COMPUT_1:th.56">COMPUT_1:56</a></span>;<br/>
<span class="kw">hence </span><a NAME="E3:53"/>
 <a href="relat_1.html#NK2" title="RELAT_1:NK.2">dom</a> <a href="comput_1.html#K15" title="COMPUT_1:func.15">[+]</a> <a href="tarski.html#R1" title="TARSKI:pred.1">c=</a> 2 <a href="finseq_2.html#K4" title="FINSEQ_2:func.4">-tuples_on</a> <a href="numbers.html#K5" title="NUMBERS:func.5">NAT</a>
 ; <a class="txt" onclick="hs(this)" href="javascript:()"><span class="comment"><font color="firebrick">::  thesis: </font></span></a><span class="hide"> verum</span><br/>


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